Total Reports
7
FDA CVM filings
Cattle /
FDA CVM · 2025 release 7 reports on file
Longhorn - FDA Adverse Event Profile
Adverse-event records for Longhorn (Cattle) from the FDA Center for Veterinary Medicine.
Data updated June 2026
The record at a glance
Longhorn ranks #468 by report volume among cattle breeds - 1 of 7 reports (14.3%) recorded a death outcome.
- #468
- most-reported cattle breed
- 14.3%
- death-coded report share
- 1
- Hair loss NOS - top reaction
- 6.3 yr
- average age at report
Report counts track breed popularity and reporting activity, not real-world risk, read this alongside how common the breed is.
Deaths Reported
1
of 7 reports
Death Rate
14.3%
death-coded share
Avg Age at Report
6.3 yr
362.9 kg avg weight
Death-Coded Outcome Share
Longhorn death-coded reports 14.3%
Cross-breed median
14.3% of 7 longhorn reports involved a death outcome.
How to read this number
Read alongside breed popularity, veterinary access, and owner awareness, these shape how many events ever reach the FDA. The comparison line marks the cross-breed median death-coded share (about 4.8%) among breeds with 50 or more reports; values above it suggest higher reporting bias toward severe outcomes, not necessarily higher true mortality.
Average weight at time of report: 362.9 kg (800.2 lbs)
Top Reported Reactions
Hair loss NOS 1
Skin scab 1
Licking 1
Scratching 1
INEFFECTIVE, LICE BITING 1
Most Referenced Drugs
Ivermectin 2
Ampicillin Trihydrate 1
Fenbendazol Powder Mix 1
Flunixin Megl Topical Solution 1
Oxytetracycline Dihydrate 1
Outcome Breakdown
Outcome Unknown
3 (42.9%)
Ongoing
2 (28.6%)
Recovered/Normal
1 (14.3%)
Died
1 (14.3%)
Gender Distribution
Female 2 (28.6%)
Male 2 (28.6%)
Unknown 2 (28.6%)
Mixed 1 (14.3%)
Reports by Year
| Year | Reports | Trend |
|---|---|---|
| 2017 | 1 | |
| 2018 | 2 | |
| 2019 | 1 | |
| 2020 | 1 | |
| 2022 | 1 | |
| 2025 | 1 | |
Longhorn Pet Health Insights
Longhorn accounts for 7 FDA adverse event reports, ranking #468 by volume among cattle breeds, with 1 reports (14.3%) coded as a death outcome. Mean age at report: 6.3 years, average weight 362.9 kg (800.2 lbs).
Top reported signs: Hair loss NOS (1), Skin scab (1), Licking (1). Most-referenced drug: Ivermectin (2 reports), followed by Ampicillin Trihydrate (1) and Fenbendazol Powder Mix (1).
Outcome coding on 7 status-recorded reports is dominated by Outcome Unknown (42.9%). Annual submissions ranged 2,017-2,025 across 6 years on file.
Cattle Breeds With a Similar Report Volume
Frequently Asked Questions
How many FDA adverse event reports involve Longhorn? ▼
There are 7 adverse event reports involving Longhorn in the FDA database, with 1 reports involving death (14.3% death rate). Longhorn ranks #468 by report volume.
What are the most common adverse reactions reported for Longhorn? ▼
The most commonly reported adverse reactions for Longhorn are Hair loss NOS (1 reports), Skin scab (1 reports), Licking (1 reports), Scratching (1 reports), INEFFECTIVE, LICE BITING (1 reports).
What drugs are most frequently associated with Longhorn adverse events? ▼
The drugs most frequently referenced in Longhorn adverse event reports are Ivermectin (2 reports), Ampicillin Trihydrate (1 reports), Fenbendazol Powder Mix (1 reports), Flunixin Megl Topical Solution (1 reports), Oxytetracycline Dihydrate (1 reports).
What is the average age of Longhorn in adverse event reports? ▼
The average age of Longhorn at the time of adverse event reports is 6.3 years, with an average weight of 362.9 kg (800.2 lbs).
Does a high number of adverse event reports mean Longhorn is unhealthy? ▼
No. FDA adverse event reports are voluntarily submitted and do not prove causation. Popular breeds with more veterinary visits tend to have more reports. The data reflects reporting patterns, not actual incidence rates. Always consult a veterinarian for health decisions.
Where does this Longhorn safety data come from? ▼
All data comes from the FDA Center for Veterinary Medicine's adverse event reporting system. Pet owners, veterinarians, and manufacturers voluntarily submit reports about adverse events potentially linked to animal drugs and other products.
Compare a breed's report volume against how common the breed is before drawing conclusions. See our methodology for how death rate and rankings are computed.
Every figure on PlainBreed is rendered directly from FDA openFDA adverse event data, no number is typed in by an editor. Breed figures are computed directly from FDA openFDA data, no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.